//
//  class_demo.hpp
//  cpp_learn
//
//  Created by 李贺 on 2021/12/17.
//

#ifndef class_demo_hpp
#define class_demo_hpp

#include <stdio.h>
#include <iostream>
#include <string>
#include <vector>
using namespace std;

namespace make_third_class_demo {
void test_op();
}

namespace make_forth_class_demo {
void test_op();
}

#endif /* class_demo_hpp */
